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  1. FcoBorja_95

    Analysis error: USER FATAL MESSAGE 4405 (PRTPRN) NO EIGENVECTORS COMPUTED

    Hello, I am doing a structural analysis with Nastran-Patran for my final project degree and I´m having some problems with the analysis. This model that I´m analyzing has around 7000 elements and I have been trying a lot of time to figure out what might be the error but I cant find it. I will...

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